Every words stands for unique digit that makes the arithmetic equation true

SEVEN + SEVEN + SIX = TWENTY.

What are the digits ?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

The answer I give is yes, but what I mean is no. What was the question?

Bopanna was working on a murder case when he received a message about the location of the murder weapon.
The message was encrypted as below.

"deb mitciv eht edisni neddih si nopaew redrum ehT"

Tell me the location of the murder weapon.

Why do people go to bed?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?